Buggy code:
public class GeneratePptGraphAction extends ActionSupport implements SessionAware { private static final long serialVersionUID = - 1269358124476669565L ; public SessionMap session ; private InputStream fileInputStream ; private RCA rca ; private RcaManager rcaManager ; private ProjectDetailsManager projectDetailsManager ; private SprintReportManager sprintReportManager ; SlideShow ppt = null ; GenerateGraph generateGraph = new GenerateGraph ( ) ; ReportUtility rU = new ReportUtility ( ) ; int idx = 0 ; int bWCx = 0 ; int lCx = 0 ; int totalWeeklyBugCount = 0 ; private static String QA = "QA" ; private static String PRODUCTION = "PROD" ; private static String UAT = "UAT" ; private static String CUMULATIVE_OPEN = "Cumulative<seq2seq4repair_space>Open" ; public static String MIX_CATEGORY = "mixCategory" ; public static String DATA_ISSUE = "dataIssue" ; public static String INTEGRATION_ISSUE = "integrationIssue" ; public static String CONFIGURATION_ISSUE = "configurationIssue" ; public static String MISSED_CHANGE_REQUIREMENT = "MorCR" ; public static String CLIENT_CODE_BUG = "cCB" ; public static String PRODUCT_DEFECT = "productDefect" ; public String execute ( ) throws Exception { } public String generateReport ( ) { } public void createGraphPpt ( List < RcaCount > rcaCounts , String week ) throws IOException { } private void createProjectSpecificGraphs ( String week ) throws IOException { } public void addPptSlides ( List < RcaCount > rcaCounts , String slideType ) throws IOException { } public void fillQADataInSlide ( List < RcaCount > allWeeksrcaCounts , List < RcaCount > rcaCounts ) throws IOException { } public void fillProdDataInSlide ( List < RcaCount > allWeeksrcaCounts , List < RcaCount > rcaCounts ) throws IOException { } public void fillUATDataInSlide ( List < RcaCount > allWeeksrcaCounts , List < RcaCount > rcaCounts ) throws IOException { } public void fillCumulativeOpenDataInSlide ( List < RcaCount > allWeeksrcaCounts , List < RcaCount > rcaCounts ) throws IOException { ReportUtility rU = new ReportUtility ( ) ; List < String > allWeeks = rU . findWeeks ( rca . getWeek ( ) ) ; <START_BUG> idx = ppt . addPicture ( generateGraph . createGraph ( rU . rcaCountForLastWeekForAllProjects ( allWeeksrcaCounts ) , "" , "" , "" , VERTICAL , true , 950 , 550 , BAR ) , PICTURE_TYPE_PNG ) ; <END_BUG> lCx = ppt . addPicture ( generateGraph . createLineGraph ( rU . reportedAllWeeksCCBGraphForAllProject ( allWeeksrcaCounts , allWeeks , GeneratePptGraphAction . CUMULATIVE_OPEN ) , "Client<seq2seq4repair_space>Code<seq2seq4repair_space>Trend" , "" , "" , VERTICAL , true , 650 , 450 , LINE ) , PICTURE_TYPE_PNG ) ; bWCx = ppt . addPicture ( generateGraph . createWeeklyGraph ( rU . reportedCumulativeOpenAllWeeksGraphForAllProject ( allWeeksrcaCounts , allWeeks ) , "Weekly<seq2seq4repair_space>Trend" , "" , "" , VERTICAL , true , 650 , 450 , BAR ) , PICTURE_TYPE_PNG ) ; } private int calculateTotalBugTypeCountForProd ( List < RcaCount > rcaCounts , String bugType ) { } private int calculateTotalBugTypeCountForQA ( List < RcaCount > rcaCounts , String bugType ) { } private int calculateTotalBugTypeCountForUAT ( List < RcaCount > rcaCounts , String bugType ) { } public void createReopenSlide ( SlideShow ppt , List < RcaCount > rcaCounts ) throws IOException { } public void addDetailReopenCount ( List < RcaCount > rcaCounts , TextRun tr , String enviType ) { } @ SuppressWarnings ( "unchecked" ) List < RcaCount > getAllWeekRCACountsListforIndividual ( List < String > allWeeks ) { } public void createGraphIndividualPpt ( List < RcaCount > rcaCount , SprintReport sprintReport , SlideShow ppt ) throws IOException { } public Map getSession ( ) { } public void setSession ( Map session ) { } public InputStream getFileInputStream ( ) { } public void setFileInputStream ( InputStream fileInputStream ) { } public RcaManager getRcaManager ( ) { } public void setRcaManager ( RcaManager rcaManager ) { } public ProjectDetailsManager getProjectDetailsManager ( ) { } public void setProjectDetailsManager ( ProjectDetailsManager projectDetailsManager ) { } public RCA getRca ( ) { } public void setRca ( RCA rca ) { } public SprintReportManager getSprintReportManager ( ) { } public void setSprintReportManager ( SprintReportManager sprintReportManager ) { } }

Fix:
idx = ppt . addPicture ( generateGraph . createGraph ( rU . rcaCountForLastWeekForAllProjects ( rcaCounts ) , "" , "" , "" , VERTICAL , true , 950 , 550 , BAR ) , PICTURE_TYPE_PNG ) ;